Statistical Analysis 3

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Statistical Analysis 3
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The discussion requires a minimum of 300 words, 3 scholarly sources, including the textbook. Make sure that you use APA style with your references. Under no circumstances use any direct quotes. Any directly quoted or copied material will result in a zero for the assignment. Let’s be sure to write it in own work 100% and give appropriately when using someone’s else work.

Reference for textbook attached:

Mirabella, J. (2011). Introduction to Statistics. Nashville, TN: Savant Learning Systems.

Many times we collect samples of data from a bigger population because the population is too large to use….because of time, cost, and ease. But, the best samples are a true reflection of the bigger population data, making the decisions made from analyzing the sample data effective for the whole population affected. This Unit discussed several different sample types. Please define and then discuss how you might collect each of the following samples from your own organization:

Simple Random Sample

Stratified Random Sample

Cluster Random Sample

Which of the these three would likely give you the best reflection of the population data?

1,500 word count and there is a total of 3 questions each (not including in-text citation and references as the word count), a minimum of 4 scholarly sources are required in APA format. For the 4 scholarly sources, one from the textbook that’s posted below and the other two from an outside source . Let’s be sure to write it in own work 100% and give appropriately when using someone’s else work. Under no circumstances use any direct quotes. Any directly quoted or copied material will result in a zero for the assignment.

Reference for textbook attached:

Mirabella, J. (2011). Introduction to Statistics. Nashville, TN: Savant Learning Systems.

Use the Student_Data which consists of 200 MBA students at Whatsamattu U. It includes variables regarding their age, gender, major, GPA, Bachelors GPA, course load, English speaking status, family, and weekly hours spent studying.

1 You wish to know the average GPA of MBA students at Whatsamatta U. Compute the 95% confidence interval of the mean using the sample of 200 students. Describe your findings.

2 You wish to know the proportion of MBA students that are majoring in Finance. Compute the 95% confidence interval of the proportion using the sample of 200 students. Describe your findings.

3 You wish to learn the average age of an MBA student within 2 years and with 99% confidence. How large of a sample should you get?

4 You wish to learn the proportion of MBA students that are female within 3%, and with 98% confidence. How large of a sample should you get?

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